40221680

素因数分解:

$2^4\times 5^1\times {\mathrm{502771}}^1$

素因数の和:502784

約数の個数: 20

約数和(自身を含む): 93515592

約数和(自身を除く): 53293912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 502771, 1005542, 2011084, 2513855, 4022168, 5027710, 8044336, 10055420, 20110840, 40221680]

約数ペア:

[(1, 40221680), (2, 20110840), (4, 10055420), (5, 8044336), (8, 5027710), (10, 4022168), (16, 2513855), (20, 2011084), (40, 1005542), (80, 502771)]